>>mitt romney and president obama prepare for their first debate. >>plus convicted d-c sniper lee boyd malvo opens up about the murders he helped commit a decade ago as a teenager. and a man who worked as an aide to an illinois congressman was accused of assaulting lindsay lohan over the weekend. [ male announcer ] this is sheldon, whose long day setting up the news starts with arthritis pain and a choice. take tylenol or take aleve the #1 recommended pain reliever by orthopedic doctors. just two aleve can keep pain away all day. back to the news. >>three americans serving with nato forces in eastern afghanistan were killed today in a suicide bombing attack. in all 14 people were killed and 37-others were injured. witnesses tell reuters the bomber was wearing a police uniform and drove a motorcycle strapped with explosives. the afghan taliban is claiming responsibility for the attack. the bombing follows the killing of two americans on sunday during a shoot out with afghan forces. >>a decade after the infamous washington, d.c. sniper murders, one of